An unmanned aerial vehicle anti-collision structure

Abstract

The utility model relates to an unmanned plane equipment technical field especially, it relates to an unmanned plane anti -collision structure, and the anti -collision structure is used for protecting unmanned plane, and the anti -collision structure includes: the anti -collision ball body, the anti -collision ball body sets up in the unmanned plane outside, fixed assembly, fixed assembly sets up in the anti -collision ball body inside, and fixed assembly includes a plurality of fixed rod, protective sleeve and protection subassembly, and the protective sleeve is fixedly arranged in the anti -collision ball body through a plurality of fixed rods, and the protection subassembly sets up in the protective sleeve center, and the unmanned plane is connected with the protective sleeve, and the multistage impact absorption mechanism of combination protective sleeve and protection subassembly realizes the directional attenuation of the multidirectional dispersion and vertical impact of the impact force of unmanned plane when colliding, thereby breaks through the limitation of traditional rigid protective structure on the buffer capacity and impact transmission path, improves the survivability and reliability of unmanned plane in complex environment, reduces the damage and failure caused by collision, prolongs the service life of unmanned plane.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) equipment technology, and in particular to a UAV anti-collision structure. Background Technology

[0002] Unmanned aerial vehicles (UAVs), or unmanned aerial vehicles, have seen rapid development and widespread application in recent years in fields such as aerial photography, power line inspection, agricultural plant protection, and logistics transportation. However, during actual flight, especially in complex environments such as indoors, between urban buildings, or in forests, UAVs are highly susceptible to collisions due to operational errors, signal interference, or sudden environmental changes. Collisions can not only damage the UAV's own propellers, fuselage, or precision sensors, but also pose a safety threat to the objects or people involved in the collision.

[0003] Currently, most existing drone collision avoidance structures employ fixed protective frames or covers, such as simple guardrails on the outside of the propellers. While these structures offer some protection, they have significant drawbacks: First, they are typically rigidly connected to the drone fuselage. In the event of a lateral or overhead collision, the enormous impact force is directly transmitted to the drone's main structure without any buffering, easily damaging internal components. Second, this fixed structure makes hard contact with obstacles, failing to unload or deflect the impact force through rolling or rotation. The instantaneous impact force is large, easily causing the drone to lose balance, roll, or even crash, lacking comprehensive collision buffering capabilities. Furthermore, existing protective frames cannot provide effective shock absorption and damping for vertical impacts from the bottom. The impact force acts directly on the drone's bottom shell and landing gear, posing a serious threat to onboard precision equipment (such as gimbal cameras and flight control systems). Therefore, existing technologies are insufficient in multi-axial collision buffering and vertical impact absorption, and urgently need improvement. Utility Model Content

[0004] The main purpose of this invention is to provide a collision protection structure for drones, which aims to alleviate the problem that drones are easily damaged when subjected to hard collisions in the prior art.

[0005] To achieve the above objectives, this utility model provides a drone anti-collision structure, which is used to protect drones. The anti-collision structure includes: A collision-resistant sphere is disposed on the exterior of the drone; A fixing component is disposed inside the anti-collision sphere. The fixing component includes several fixing rods, a protective sleeve, and a protective component. The protective sleeve is fixedly disposed inside the anti-collision sphere by several fixing rods. The protective component is disposed at the center of the protective sleeve. The drone is connected to the protective sleeve, and the protective component abuts against the lower end face of the drone.

[0006] Optionally, the anti-collision ball includes an anti-collision sleeve, an anti-collision outer ring, and an anti-collision inner ring. The anti-collision outer ring is disposed inside the anti-collision sleeve and is movably connected to the anti-collision sleeve. The anti-collision inner ring is disposed inside the anti-collision outer ring and is movably connected to the anti-collision outer ring.

[0007] Optionally, the anti-collision sleeve is a spherical structure comprising 60 regular pentagons.

[0008] Optionally, the anti-collision ball further includes a rotating bearing, the outer anti-collision ring is rotatably connected to the anti-collision sleeve via the rotating bearing, and the inner anti-collision ring is rotatably connected to the outer anti-collision ring via the rotating bearing.

[0009] Optionally, the axis of rotation of the outer anti-collision ring relative to the anti-collision sleeve is perpendicular to the axis of rotation of the inner anti-collision ring relative to the outer anti-collision ring.

[0010] Optionally, the protective cover includes a protective base and several protective brackets, one end of the protective bracket is fixedly connected to the protective base, and the other end of the protective bracket is connected to the drone.

[0011] Optionally, the protective component is disposed at the center of the protective base.

[0012] Optionally, the protection component includes a damping seat, a damping plate is disposed inside the damping seat, a plurality of sliding rods are fixedly disposed on the damping seat, elastic elements are disposed on the outer periphery of the sliding rods, and the damping plate abuts against the ground of the UAV.

[0013] Optionally, a damping connecting rod is rotatably mounted on the damping seat, the movable end of the damping connecting rod is connected to a movable rod, and the free end of the movable rod is rotatably connected to the upper end surface of the damping plate.

[0014] Optionally, the elastic element includes a spring.

[0015] This utility model achieves multi-directional dispersion of impact force and directional attenuation of vertical impact when a drone collides by using a layered buffer design of the anti-collision sphere and fixed components, combined with a multi-level impact absorption mechanism of the protective sleeve and protective components. This breaks through the limitations of traditional rigid protective structures in terms of buffering capacity and impact transmission path. Specifically, the anti-collision sphere is installed on the outside of the drone to enclose and protect it. The fixing components are located inside the anti-collision sphere, including several fixing rods, a protective sleeve, and protective components. The fixing rods secure the protective sleeve to the anti-collision sphere, forming a stable internal support structure. The protective sleeve is located at the center of the anti-collision sphere to accommodate and secure the drone. The protective components are located at the center of the protective sleeve, abutting against the lower end of the drone, providing additional protection and cushioning. This effectively protects the drone from collision damage. The anti-collision sphere provides all-around external protection, reducing direct impact force. The multi-layered buffer structure absorbs and disperses impact energy step by step, reducing the impact force transmitted to the drone body. The protective components abut against the lower end of the drone, providing additional protection for precision equipment. This design significantly improves the drone's survivability and reliability in complex environments, reduces damage and malfunctions caused by collisions, and extends the drone's service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-collision structure for drones in an embodiment of this utility model; Figure 2 This is a perspective structural diagram of the protective component in an embodiment of the present invention; Figure 3 This is a schematic diagram of the protective component in an embodiment of the present invention.

[0017] Figure label: 1-Anti-collision ball, 2-Fixing components; 11-Anti-collision sleeve, 12-Anti-collision outer ring, 13-Anti-collision inner ring, 14-Rotating bearing; 21-Fixing rod, 22-Protective sleeve, 23-Protective component; 221 - Protective base; 222 - Protective bracket; 231-Damping seat, 232-Damping plate, 233-Slide rod, 234-Elastic element, 235-Damping connecting rod, 236-Modular rod.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Example: Please refer to the attached document as well. Figures 1 to 3 This embodiment provides a drone anti-collision structure, which is used to protect the drone. The anti-collision structure includes: A collision-resistant sphere 1 is disposed on the exterior of the drone; The fixing component 2 is disposed inside the anti-collision ball 1. The fixing component 2 includes several fixing rods 21, a protective sleeve 22, and a protective component 23. The protective sleeve 22 is fixedly disposed inside the anti-collision ball 1 by several fixing rods 21. The protective component 23 is disposed at the center of the protective sleeve 22. The drone is connected to the protective sleeve 22, and the protective component 23 abuts against the lower end face of the drone.

[0024] It should be noted that in traditional drone collision avoidance structures, rigid connections result in the direct transfer of impact force to the main fuselage. The fixed protective architecture cannot achieve multi-directional unloading of the impact force through kinematic adjustments, and it lacks a mechanism for absorbing vertical impact energy. This structural deficiency means that when a drone moves in complex spaces, the kinetic energy generated by a collision cannot be effectively dispersed through a buffer path. This causes the precision components inside the fuselage to bear instantaneous loads exceeding design thresholds, directly affecting flight stability and equipment reliability.

[0025] Based on the above problems, this embodiment uses a layered buffer design of the anti-collision ball 1 and the fixed component 2, combined with the multi-level impact absorption mechanism of the protective sleeve 22 and the protective component 23, to achieve multi-directional dispersion of the impact force of the UAV during collision and directional attenuation of the vertical impact, thereby breaking through the limitations of traditional rigid protective structures in terms of buffering capacity and impact transmission path.

[0026] Specifically, the anti-collision sphere 1 is set outside the drone to enclose and protect it. The fixing component 2 is set inside the anti-collision sphere 1 and includes several fixing rods 21, a protective sleeve 22, and a protective component 23. The fixing rods 21 fix the protective sleeve 22 inside the anti-collision sphere 1 to form a stable internal support structure. The protective sleeve 22 is located at the center inside the anti-collision sphere 1 and is used to accommodate and fix the drone. The protective component 23 is set at the center of the protective sleeve 22 and abuts against the lower end face of the drone to provide additional protection and cushioning for the drone.

[0027] When the drone collides, the anti-collision ball 1 first bears the external impact, and disperses and absorbs part of the impact energy through its spherical structure. The fixing rod 21 transmits the impact force to the protective sleeve 22, which further buffers and disperses the impact force. The protective component 23 abuts against the lower end face of the drone, providing the drone with the last line of protection and absorbing the remaining impact energy.

[0028] The aforementioned multi-layered protective structure effectively reduces the impact force directly acting on the drone body, preventing damage from collisions. The spherical design of the anti-collision sphere 1 allows it to roll or deflect upon impact, further reducing the impact force. The multi-layered structure design of the fixing component 2 achieves gradual attenuation of the impact force, providing all-round protection for the drone's core components. This effectively protects the drone from collision damage. The anti-collision sphere 1 provides all-round external protection, reducing direct impact force. The multi-layered buffer structure absorbs and disperses impact energy step by step, reducing the impact force transmitted to the drone body. The protective component 23 abuts against the lower end face of the drone, providing additional protection for precision equipment. This design significantly improves the drone's survivability and reliability in complex environments, reduces damage and malfunctions caused by collisions, and extends the drone's service life.

[0029] In this embodiment, the anti-collision ball 1 includes an anti-collision sleeve 11, an anti-collision outer ring 12, and an anti-collision inner ring 13. The anti-collision outer ring 12 is disposed inside the anti-collision sleeve 11 and is movably connected to the anti-collision sleeve 11. The anti-collision inner ring 13 is disposed inside the anti-collision outer ring 12 and is movably connected to the anti-collision outer ring 12.

[0030] Understandably, when a drone experiences a lateral collision, the anti-collision sleeve 11 first contacts the obstacle, and the outer anti-collision ring 12 rotates along the horizontal axis to deflect the impact direction. When the drone experiences a vertical collision, the inner anti-collision ring 13 rotates along the vertical axis to absorb the longitudinal impact energy. The rotational degrees of freedom of the three-layer structure form a three-dimensional buffer space, converting linear impact into rotational kinetic energy through layer-by-layer rotational motion. The collision energy is gradually attenuated through multiple layers of structure before being transferred to the fixed component 2. This structure enables the drone to trigger the corresponding rotational buffer mechanism when colliding in any direction, effectively reducing the instantaneous impact peak.

[0031] In this embodiment, the anti-collision sleeve 11 is a spherical structure comprising 60 regular pentagons. It is understood that a typical example of this structure is a C60 structure. When the drone collides, the spherical structure composed of regular pentagons transmits the impact force evenly to the twelve adjacent pentagonal units through geometric symmetry, ensuring that each pentagonal unit provides effective protection under stress.

[0032] In this embodiment, the anti-collision ball 1 further includes a rotating bearing 14, the anti-collision outer ring 12 is rotatably connected to the anti-collision sleeve 11 via the rotating bearing 14, and the anti-collision inner ring 13 is rotatably connected to the anti-collision outer ring 12 via the rotating bearing 14.

[0033] When the drone is subjected to a side impact, the outer anti-collision ring 12 rotates around the horizontal axis via the rotating bearing 14, converting the impact force into rotational kinetic energy and preventing rigid transmission to the drone body. When the drone is subjected to a top or bottom impact, the inner anti-collision ring 13 rotates around the vertical axis via the rotating bearing 14, further absorbing the vertical impact energy. Because the axes of the two sets of rotating bearings 14 are orthogonally arranged, collisions in different directions can trigger corresponding rotational actions, achieving multi-degree-of-freedom buffering. For example, in an oblique collision scenario, the rotating bearings 14 of the outer and inner anti-collision rings 12 and 13 can work together to decompose the horizontal and vertical components of the impact force through compound rotation, thereby reducing the instantaneous load on the drone body.

[0034] In this embodiment, the axis of rotation of the outer anti-collision ring 12 relative to the anti-collision sleeve 11 is perpendicular to the axis of rotation of the inner anti-collision ring 13 relative to the outer anti-collision ring 12.

[0035] It should be noted that when the drone is impacted horizontally, the outer anti-collision ring 12 rotates relative to the anti-collision sleeve 11 around the lateral axis, converting the impact force into rotational kinetic energy of the outer ring. When the drone is impacted vertically, the inner anti-collision ring 13 rotates relative to the outer anti-collision ring 12 around the longitudinal axis, converting the impact force into rotational kinetic energy of the inner ring. The two sets of rotating shaft systems absorb impact components from different planes. The lateral rotating shaft buffers lateral impacts through the rotation of the outer ring, while the longitudinal rotating shaft buffers apical impacts through the rotation of the inner ring. The raceway structure of the rotating bearing 14 is configured to correspond to the load transmission paths in the lateral and longitudinal directions, respectively. The bearing raceways of the outer ring and sleeve are distributed circumferentially, while the bearing raceways of the inner ring and outer ring are distributed axially. Through the orthogonally arranged rotating shaft system, the collision energy is decomposed into two independent rotating planes for dissipation, avoiding the superposition of impact forces caused by a single rotating shaft direction.

[0036] In this embodiment, the protective sleeve 22 includes a protective base 221 and several protective supports 222. One end of each protective support 222 is fixedly connected to the protective base 221, and the other end is connected to the drone. When the drone collides, the external impact force is transmitted to the protective base 221 through the protective supports 222. The multiple protective supports 222 form a spatial truss structure, decomposing the concentrated load into multiple component forces, which are transmitted to the protective base 221 in different directions. The protective base 221 further transmits the dispersed load to the fixed rod 21, and finally, the anti-collision ball 1 absorbs and buffers it. During this process, the radial layout of the protective supports 222 forms a multi-path force transmission channel, avoiding overload of a single force transmission path. The multi-point connection between the protective supports 222 and the drone ensures that the impact force is evenly distributed across multiple contact areas of the drone's shell, preventing local structural deformation. The central position of the protective base 221 ensures that each protective support 222 is subjected to balanced force, avoiding structural instability due to uneven loading.

[0037] In this embodiment, the protective component 23 is disposed at the center of the protective base 221. By placing the protective component 23 at the center of the protective base 221, the impact force is evenly transmitted along the protective bracket 222 to each fixing rod 21 of the protective sleeve 22, avoiding local stress concentration; the compression of the elastic element 234 and the rotation of the damping link 235 work together to prolong the impact force action time and reduce the instantaneous peak load.

[0038] In this embodiment, the protection component 23 includes a damping seat 231, a damping plate 232 is disposed inside the damping seat 231, a plurality of sliding rods 233 are fixedly disposed on the damping seat 231, an elastic element 234 is disposed on the outer periphery of the sliding rods 233, and the damping plate 232 abuts against the ground of the UAV.

[0039] In this embodiment, a damping connecting rod 235 is rotatably mounted on the damping seat 231. A movable rod 236 is connected to the movable end of the damping connecting rod 235, and the free end of the movable rod 236 is rotatably connected to the upper end face of the damping plate 232. When the bottom of the drone contacts an obstacle, the damping plate 232 is pressed upwards, pushing the movable rod 236. The movable rod 236 then drives the damping connecting rod 235 to rotate around the hinge point. This movement forces the elastic element 234 to undergo axial compression deformation, and the impact energy is converted into heat energy through spring deformation and friction of the silicone sleeve.

[0040] In this embodiment, the elastic element 234 includes a spring. When the spring is compressed, some of the impact energy is converted into elastic potential energy through elastic deformation. The remaining energy is transmitted to the damping seat 231 for dispersion via the damping link 235 and the movable rod 236. The compression stroke of the spring is proportional to the magnitude of the impact force. At the maximum compression position, the elastic potential energy reaches its peak value. At this time, the restoring force of the spring acts in the opposite direction on the damping plate 232, slowing down the rebound speed of the drone.

[0041] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A collision avoidance structure for unmanned aerial vehicles (UAVs), characterized in that, The collision protection structure is used to protect the drone, and the collision protection structure includes: A collision-resistant sphere is disposed on the exterior of the drone; A fixing component is disposed inside the anti-collision sphere. The fixing component includes several fixing rods, a protective sleeve, and a protective component. The protective sleeve is fixedly disposed inside the anti-collision sphere by several fixing rods. The protective component is disposed at the center of the protective sleeve. The drone is connected to the protective sleeve, and the protective component abuts against the lower end face of the drone.

2. The anti-collision structure for unmanned aerial vehicles as described in claim 1, characterized in that, The anti-collision sphere includes an anti-collision sleeve, an anti-collision outer ring, and an anti-collision inner ring. The anti-collision outer ring is disposed inside the anti-collision sleeve and is movably connected to the anti-collision sleeve. The anti-collision inner ring is disposed inside the anti-collision outer ring and is movably connected to the anti-collision outer ring.

3. The anti-collision structure for unmanned aerial vehicles as described in claim 2, characterized in that, The anti-collision sleeve is a spherical structure consisting of 60 regular pentagons.

4. The anti-collision structure for unmanned aerial vehicles as described in claim 2, characterized in that, The anti-collision ball also includes a rotating bearing. The outer anti-collision ring is rotatably connected to the anti-collision sleeve via the rotating bearing, and the inner anti-collision ring is rotatably connected to the outer anti-collision ring via the rotating bearing.

5. The anti-collision structure for unmanned aerial vehicles as described in claim 4, characterized in that, The axis of rotation of the outer anti-collision ring relative to the anti-collision sleeve is perpendicular to the axis of rotation of the inner anti-collision ring relative to the outer anti-collision ring.

6. The anti-collision structure for unmanned aerial vehicles as described in claim 1, characterized in that, The protective cover includes a protective base and several protective brackets. One end of the protective bracket is fixedly connected to the protective base, and the other end of the protective bracket is connected to the drone.

7. The anti-collision structure for unmanned aerial vehicles as described in claim 6, characterized in that, The protective component is located at the center of the protective base.

8. The anti-collision structure for unmanned aerial vehicles as described in claim 7, characterized in that, The protection component includes a damping seat, a damping plate is disposed inside the damping seat, a plurality of sliding rods are fixedly disposed on the damping seat, elastic elements are disposed on the outer periphery of the sliding rods, and the damping plate abuts against the ground of the UAV.

9. The anti-collision structure for unmanned aerial vehicles as described in claim 8, characterized in that, A damping connecting rod is rotatably mounted on the damping seat. The movable end of the damping connecting rod is connected to a movable rod, and the free end of the movable rod is rotatably connected to the upper end face of the damping plate.

10. The anti-collision structure for unmanned aerial vehicles as described in claim 8, characterized in that, The elastic element includes a spring.

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